Concrete building construction



July 8 1924. 1,500,445

w. J. DVORAK CONCRETE BUILDING CONSTRUCTI ON Filed March 26 1923 2Sheets-Sheet 1 aw)? M 441M027 wow- Jul 8, 1924. 1,500,445

W. J. DVORAK CONCRETE BUILDING CONSTRUCTION Filed March 26. 1923 2Sheets-Sheet 2 PATENT OFFICE. I

WENZEL J. DVORAK, OF SUNSET HEIGHTS TEXAS.

CONCRETE BUILDING CONSTRUCTION.

Application filed March 26, 1923. Serial No. 627.609.

To all whom it my came a.-

Be it known that I, WENZEL J. DVORAK, a citizen of Czechoslovakia,residing at Sunset Heights, in the county of Harris and State of Texas,have invented certain new and useful Improvements in Concrete BuildingConstructions, of which the following is a specification.

This invention relates to new and useful improvements in concretebuilding construction.

One object of the invention is to provide a construction of thecharacter described whose parts are precast, previous to erection, saidparts being provided with suitable reinforcing rods which project toform loops by means of which the parts may be tied together during theprocess of erection.

With the above and other objects in view the invention has particularrelation to certain novelfeatures of construction, arrangement of parts,and use, an example of which is given in this specification, andillustrated in the accompanying drawings, wherein:-

Figure 1 shows a fragmentary horizontal sectional view of theconstruction.

Figure 2 shows a fragmentary vertical section view;

In the drawings the numerals 1 and 2 designate the vertical cornerbeamswhich are of a suitable contour to fit closely together, and thenumeral 3' designates a wall colunm. These columns are mounted on asuitable foundation as 4, and when a story of the construction iscompleted a suitable cap plate as 5 is poured, this ca'p plate forming asupport. for an additional story. In the cap plate of the upper storybolts as 6 are embedded to receive the wooden strip 7 which is securedin place by the nuts 8. This wooden strip is provided for nailing therafters or other roof support to the structure. The columns 1, 2 and 3have suitable vertical reinforcing rods as 9 and horizontally arrangedreinforcing rods as 10, 10, 11, 11, 12, 12, and 13 which project outforming loops or ties, as illustrated in Figure 1. The walls arecomposed of outer wall slabs 14, 14 and inner wall slabs 15, 15 spacedapart and reinforced with the reinforcing rods 16 and 17 respectively.These reinforcing rods of the wall slabs project out at the ends formingthe loops 10', 10', 11', 11312312, and 13', 13', which overlap thecorresponding loops 10, 11, 12

and 13, respectively, and the parts are interlocked or tied together bythe corresponding tie rods 18, 18, 19,20, 20, and 21, 21, and whenerected in position concrete in plastic state is poured in between theadjacent walls to embed said overlapping loops and looking rods in thematerial of the wall and when this concrete is hardened it will form asubstantially monolithic structure. The reinforcing rods 9 have theirlower ends embedded in the foundation as well as in the cap plate of thewall, thus tying the parts together and forming a very strongconstruction. The wallslabs 14; and 15 are mounted one upon the other,as shown in Figure 2. These slabs are preferably about two feet in widthand of the required length and thickness and when mounted in place withtheir ends anchored to the columns of the framework, as described, andas shown in Figures 1 and 2they form a smooth and durable wallsubstantially hollow throughout thus providing a building whose interioris not suddenly afi'ected by variations in the outside temperature.

What I claim is 1. A concrete construction composed of a base, precastconcrete columns mounted on said base and forming corner columns andwall columns, vertical reinforcing rods embedded in said columns whoselower ends 7 project beyond the columns and are em bedded in said base,precast concrete wall slabs disposed one above the other forming outerand inner walls horizontally arranged, reinforcing rods in saidprojectingv columns and slabs which are formed into projecting loopswhich project from adjacent parts of the columns and slabs and overlap,looking rods projecting through said loops and locking them together,the upper ends of the vertical reinforcing rods of said columnsprojecting beyond the columns, and a cap plate molded onto the top ofthe complete wall of said construction, the said projecting upper endsof said rods being embedded in said cap plate.

2.'A c0nc1ete construction composed of a base, precast vertical cornercolumns, and precast vertical wall columns, said corner columns beingformed of vertical sections formed to complement each other, and saidrods in said respective columns which project out, forming loops orties, and loops projecting from the respective sections of the wallcolumns and, over-lapping, outer wall slabs and inner wall slabs spacedapart, lon 'tudinal reinforcing rods embedded in sai slabs and formedwith projecting end loops which overlap the corresponding 100 s of thehorizontal reinforcing rods of t e columns, vertical tie rods insertedthrou 11 said respective overlapping loops and 100 ing said partstogether, said vertical reinforcing. rods projecting up above saidcolumns, and a cap plate moulded onto the top of the complete wall ofthe construction, 15

said projecting upper ends of said rods being embedded in said capplate.

E. V. HARDWIG, LUTHER N. HULL.

